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Round|Lab Grown|IGI

1.21ct H VS2 Round Lab Grown Diamond

ID • H/VS2 • IGI LG783646953

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783646953

Diamond specifications and retailer prices

From £146 GBP
$196 USD
As of October 29, 2026
Save £707 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £853 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG783646953 or 783646953. Listed at 17 retailers as of October 29, 2026, with prices from £146 to £853, a £707 spread on the same certified stone. MOH London lists it at £853. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
H
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783646953
Dimensions6.92 × 6.89 × 4.20 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.92 mm6.89 mm1.21 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783646953
Side View
Table 55.0%Crown 33.3°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £853 GBP|Low: £140 GBP|High: £859 GBP|Avg: £405 GBP|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 10£146 GBP
Retailer 12£181 GBP
Retailer 14£181 GBP
Retailer 5£314 GBP
Retailer 13£316 GBP
Retailer 7£334 GBP
Retailer 3£364 GBP
Retailer 8£373 GBP
Retailer 2£380 GBP
Retailer 11£410 GBP
Retailer 9£466 GBP
Retailer 6£623 GBP
Retailer 4£651 GBP
MOH London£853 GBP

34 data points across 14 retailers

17 retailers£146 GBP to £853 GBP

A
Cheapest Retailer
-
£146 GBP
$196 USD
A
Retailer 2
-
£169 GBP
$227 USD
View
A
Retailer 3
-
£181 GBP
$243 USD
View
A
Retailer 4
-
£181 GBP
$243 USD
View
A
Retailer 5
-
£314 GBP
$421 USD
View
A
Retailer 6
-
£316 GBP
$424 USD
View
B+
Retailer 7
-
£334 GBP
€426 EUR
View
B+
Retailer 8
-
£364 GBP
$488 USD
View
Retailer 9
-
£373 GBP
$500 USD
View
Price last confirmed 13 days ago
B+
Retailer 10
-
£380 GBP
View
B+
Retailer 11
-
£410 GBP
$550 USD
View
B+
Retailer 12
-
£466 GBP
$624 USD
View
Retailer 13
-
£532 GBP
$713 USD
View
Price last confirmed 45 days ago
B
Retailer 14
-
£584 GBP
$782 USD
View
B
Retailer 15
-
£623 GBP
$835 USD
View
B
Retailer 16
-
£664 GBP
$890 USD
View
Most Expensive
B
MOH London
LG783646953 · Oct 29
£853 GBP
View
16 more retailers have this diamond
Prices start from £146 GBPSave up to £707 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.21ct Round
£146 GBP